Production of PVC foam board of raw materials are what ah? What is the role of ah?
Stabilizer: In the PVC foam sheet production process, in order to make the material fully plasticized, the material temperature is higher; and the plate mold cross-section width, long runner, especially the crust foam sheet mold section is longer, In addition, the blowing agent in the decomposition process also produce decomposition heat, these factors require stabilizers must have sufficient thermal stability. In order to ensure product quality, long-term stable production.
PVC resin: This is the most important raw materials, foam substrate, the production of PVC foam sheet generally use P-700-type PVC resin, the processing of its gelation speed, processing temperature is relatively low, product quality and density Easy to control. In the production of leather foam PVC sheet, in order to improve product quality, strict control of product density and thickness fluctuations, more use of P-700-type vinyl PVC resin. In the production of free foam PVC sheet, from the lower production costs to consider, there are many manufacturers using calcium carbide P-700-type PVC resin
Production of PVC foam board main raw materials are: PVC resin, stabilizer, foam regulator, foaming agent. Pigments. Fillers,
